8XT7 | pdb_00008xt7

The crystal structure of human AS3MT

• PDB DOI: https://doi.org/10.2210/pdb8XT7/pdb

• Classification: TRANSFERASE
• Organism(s): Homo sapiens
• Expression System: Escherichia coli
• Mutation(s): No 


• Deposited: 2024-01-10 Released: 2025-01-15 
• Deposition Author(s): Chun, I.S., Kim, M.S.
• Funding Organization(s): National Research Foundation (NRF, Korea)

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.59 Å
• R-Value Free: 
  0.228 (Depositor), 0.233 (DCC) 
• R-Value Work: 
  0.201 (Depositor), 0.207 (DCC) 
• R-Value Observed: 
  0.203 (Depositor) 

Starting Model: experimental

Literature

The crystal structure of human AS3MT

Chun, I.S., Kim, M.S.

To be published.

Biological Assembly 1  

Global Symmetry: Cyclic - C4  (Explore in 3D)
Global Stoichiometry: Homo 4-mer - A4 

Biological assembly 1 assigned by authors and generated by (software)

Biological Assembly Evidence: gel filtration

Macromolecule Content 

• Total Structure Weight: 144.48 kDa 
• Atom Count: 9,673 
• Modeled Residue Count: 1,199 
• Deposited Residue Count: 1,284 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Arsenite methyltransferase	A, B, C, D	321	Homo sapiens	Mutation(s): 0  Gene Names: AS3MT, CYT19 EC: 2.1.1.137
UniProt & NIH Common Fund Data Resources
Find proteins for Q9HBK9 (Homo sapiens) Explore Q9HBK9  Go to UniProtKB:  Q9HBK9
PHAROS:  Q9HBK9 GTEx:  ENSG00000214435

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
EDO	E [auth A], F [auth B], G [auth C], H [auth D]	1,2-ETHANEDIOL C2 H6 O2 LYCAIKOWRPUZTN-UHFFFAOYSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.59 Å
• R-Value Free:  0.228 (Depositor), 0.233 (DCC) 
• R-Value Work:  0.201 (Depositor), 0.207 (DCC) 
• R-Value Observed: 0.203 (Depositor) 

Space Group: P 1 2₁ 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 85.829	α = 90
b = 85.772	β = 104.44
c = 97.852	γ = 90

Software Package:

Software Name	Purpose
PHENIX	refinement
HKL-2000	data reduction
HKL-2000	data scaling
PDB_EXTRACT	data extraction
PHENIX	phasing

Structure Validation

Entry History & Funding Information

Deposition Data

• Released Date: 2025-01-15 
Deposition Author(s): Chun, I.S., Kim, M.S.

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Funding Organization	Location	Grant Number
National Research Foundation (NRF, Korea)	Korea, Republic Of	--

Revision History  

• Version 1.0: 2025-01-15
  Type: Initial release